[PSander]

I wrote the blockMeshDict and want to create now a blockMesh. During the process I get an error message. It says:

"In function ‘void Foam::codeStream_efa88c99f17594f6f3c82927a0fb16235 e07ee90(Foam::Ostream&, const Foam::dictionary&)’:
:1:34: error: ‘d_sl_y’ was not declared in this scope
/opt/openfoam7/wmake/rules/General/transform:25: recipe for target 'Make/linux64GccDPInt32Opt/codeStreamTemplate.o' failed
make: *** [Make/linux64GccDPInt32Opt/codeStreamTemplate.o] Error 1


--> FOAM FATAL IO ERROR:
Failed wmake "dynamicCode/_efa88c99f17594f6f3c82927a0fb16235e07ee90/platforms/linux64GccDPInt32Opt/lib/libcodeStream_efa88c99f17594f6f3c82927a0fb16235e07 ee90.so"


file: /home/philip/OpenFOAM/philip-7/test_playground/system/blockMeshDict from line 17 to line 189.

From function static void (* Foam::functionEntries::codeStream::getFunction(con st Foam::dictionary&, const Foam::dictionary&))(Foam::Ostream&, const Foam::dictionary&)
in file db/dictionary/functionEntries/codeStream/codeStream.C at line 218.

FOAM exiting"


What I understand, is that "d_sl_y" is missing, but it is part of my blockMeshDict, as you can see in my code

//Surface_layer
//
d_sl_x $d_s3_x; // horizontal size of surface layer
d_sl_z $d_p1_l; // length of surface layer (z)
d_sl_y 1.5; // vertical size of surface layer

Is there any explanation, why I get this error?
Thank you for your help